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Natural Resources Management and Policy Commons™
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- Nebraska (43)
- Evapotranspiration (34)
- Remote sensing (24)
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- Resilience (19)
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- Soybean (14)
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- Irrigation (9)
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- Publication Year
Articles 1141 - 1170 of 1177
Full-Text Articles in Natural Resources Management and Policy
Influence Of Windbreak-Shelter On Soybean Production Under Rainfed Conditions, S.N. Ogbuehi, James R. Brandle
Influence Of Windbreak-Shelter On Soybean Production Under Rainfed Conditions, S.N. Ogbuehi, James R. Brandle
School of Natural Resources: Faculty Publications
No abstract provided.
Influence Of Windbreak-Shelter On Soybean Production Under Rainfed Conditions, S.N. Ogbuehi, James R. Brandle
Influence Of Windbreak-Shelter On Soybean Production Under Rainfed Conditions, S.N. Ogbuehi, James R. Brandle
School of Natural Resources: Faculty Publications
No abstract provided.
Forestry For Wildlife Habitat Improvement. Nebraska Cooperative Extension Service Ec 81-1747, Ec 80-1747, Frank A. Hershey, Howard L. Wiegers
Forestry For Wildlife Habitat Improvement. Nebraska Cooperative Extension Service Ec 81-1747, Ec 80-1747, Frank A. Hershey, Howard L. Wiegers
School of Natural Resources: Faculty Publications
Wildlife cannot exist without food and protective cover. Natural and planted woodlands contribute significantly to these essentials. This circular describes habitat needs of wildlife, recommends forestry practices for habitat improvement, and gives examples of practices to improve habitat for pheasant, quail, and deer.
Variety, rather than uniformity of vegetation, benefits most wildlife species. Management which results in a diverse plant community with many stages of growth can increase the numbers and species of wildlife. Techniques which create improved conditions for woodland wildlife are fundamentally the same as those designed to grow good timber.
Plant And Air Temperatures In Differentially-Irrigated Corn, B. L. Blad
Plant And Air Temperatures In Differentially-Irrigated Corn, B. L. Blad
School of Natural Resources: Faculty Publications
No abstract provided.
Mass And Energy Exchanges Of A Soybean Canopy Under Various Environmental Regimes, S. B. Verma
Mass And Energy Exchanges Of A Soybean Canopy Under Various Environmental Regimes, S. B. Verma
School of Natural Resources: Faculty Publications
No abstract provided.
Reflectorized Soybean Canopy In Relation To Transpiration And Herbicide Phytotoxicity, S.N. Ogbuehi, J.R.C. Leavitt, James R. Brandle
Reflectorized Soybean Canopy In Relation To Transpiration And Herbicide Phytotoxicity, S.N. Ogbuehi, J.R.C. Leavitt, James R. Brandle
School of Natural Resources: Faculty Publications
No abstract provided.
Regional Tectonics And Seismicity Of Eastern Nebraska, Annual Report July 1980 - June 1981, R. R. Burchett
Regional Tectonics And Seismicity Of Eastern Nebraska, Annual Report July 1980 - June 1981, R. R. Burchett
School of Natural Resources: Faculty Publications
This annual report presents and interprets the information obtained by the Conservation and Survey Division (Nebraska Geological Survey) during contract year July 1, 1980, to June 30, 1981, under contract NRC-04-76-3lS with the U. S. Nuclear Regulatory Commission. The information pertains to the geology, structure, tectonics, and seismicity of eastern Nebraska with emphasis on central Otoe County. Some of the information presented here results from a combination of studies begun in earlier years but the greater part results from studies begun during the contract year.
The scope of the studies is summarized as follows:
1. Rock outcrops in Otoe County …
An Objective Forecast Method Developed For Lake Ontario Induced Snowfall Systems, K. F. Dewey
An Objective Forecast Method Developed For Lake Ontario Induced Snowfall Systems, K. F. Dewey
School of Natural Resources: Faculty Publications
A research effort was initiated in 1976 to develop an objective lake-effect snowfall forecast model for each of the Great Lakes. It is the purpose of this paper to present the development and evaluation of the forecast method which was created for the Lake Ontario induced snowfall systems. All Lake Ontario lake-effect days were identified for a 10-yead period prior to the 1976 snowfall season. Upper air surface observations were combined with overlake data for these lake-effect periods. The dominant predictors were derived through the diagnostic ability of stepwise multiple discriminant analysis. The final product of this research effort was …
Lake Erie Induced Mesosystems- An Operational Forecast Model, Kenneth F. Dewey
Lake Erie Induced Mesosystems- An Operational Forecast Model, Kenneth F. Dewey
School of Natural Resources: Faculty Publications
All Lake Erie lake-effect days for a 10-year period prior to the 1976-77 snowfall season were utilized in the development of an operational lake-effect snowfall forecast model. Upper air and surface observation were combined with overlake data and analyzed, using stepwise multiple-discriminant analysis. A nine-predictor mesoscale forecast model resulted from this statistical test and its performance was evaluated during the 1976-77 and 1977-78 snowfall seasons. The results of this evaluation indicate that it is possible to predict six intensities of the Lake Erie lake-effect snowstorm using this mesoscale model.
Aerial And Crop Resistances Affecting Energy Transport, S. B. Verma, B. J. Barfield
Aerial And Crop Resistances Affecting Energy Transport, S. B. Verma, B. J. Barfield
School of Natural Resources: Faculty Publications
No abstract provided.
Turbulence Under Conditions Of Sensible Heat Advection, R. P. Motha, S. B. Verma, N. J. Rosenberg
Turbulence Under Conditions Of Sensible Heat Advection, R. P. Motha, S. B. Verma, N. J. Rosenberg
School of Natural Resources: Faculty Publications
No abstract provided.
Exchange Coefficients Under Sensible Heat Advection Determined By Eddy Correlation, S. B. Verma
Exchange Coefficients Under Sensible Heat Advection Determined By Eddy Correlation, S. B. Verma
School of Natural Resources: Faculty Publications
No abstract provided.
An Objective Forecast Method Developed For Lake Ontario Induced Snowfall Systems, K. F. Dewey
An Objective Forecast Method Developed For Lake Ontario Induced Snowfall Systems, K. F. Dewey
School of Natural Resources: Faculty Publications
A research effort was initiated in 1976 to develop an objective lake-effect snowfall forecast model for each of the Great Lakes. It is the purpose of this paper to present the development and evaluation of the forecast method which was created for the Lake Ontario induced snowfall systems. All Lake Ontario lake-effect days were identified for a 10-year period prior to the 1976 snowfall season. Upper air and surface observations were combined with overlake data for these lake-effect periods. The dominant predictors were derived through the diagnostic ability of stepwise multiple discriminant analysis. The final product of this research effort …
The States And Natural Hazards, The Council Of State Governments, Robert Kuzelka
The States And Natural Hazards, The Council Of State Governments, Robert Kuzelka
School of Natural Resources: Faculty Publications
No abstract provided.
Regional Tectonics And Seismicity Of Eastern Nebraska, R. R. Burchett
Regional Tectonics And Seismicity Of Eastern Nebraska, R. R. Burchett
School of Natural Resources: Faculty Publications
This annual report presents and interprets the information obtained by the Conservation and Survey Division (Nebraska Geological Survey) during contract year July 1, 1979, to June 30, 1980, under contract NRC-04-76-3l5 with the U. S. Nuclear Regulatory Commission. The information pertains to the geology, structure, tectonics, and seismicity of eastern Nebraska with emphasis on the vicinity south of Omaha, Nebraska. Some of the information presented here results from a combination of studies begun in earlier years but the greater part results from studies begun during the contract year.
The scope of the studies is summarized as follows:
1. Rock outcrops …
Digital Demodulator-Correlator, James C. Fletcher, James W. Layland, Warren L. Martin, Arthur I. Zygielbaum, Richard M. Goldstein, William P. Hubbard
Digital Demodulator-Correlator, James C. Fletcher, James W. Layland, Warren L. Martin, Arthur I. Zygielbaum, Richard M. Goldstein, William P. Hubbard
School of Natural Resources: Faculty Publications
Apparatus for demodulation and correlation of a code modulated 10 MHz signal is comprised of a sample and hold analog-to-digital (A/D) converter synchronized by a frequency coherent 40 MHz pulse to obtain four evenly spaced samples A1,B1A2 and B2 of each cycle of the signal, and means for adding, or subtracting, each sample to, or from, one of four accumulators to form the sums:
SI, = (A1-A2) M1
Sia=; (A1-A2) M2
S2, = (B1 - B2) M1
S2= (B1-B2) M2
where
M1 = 10 MHz Reference . Receiver Code A0' M2 = 10 MHz. Reference . Receiver Code A90'
M2 …
Local And Regional Components Of Sensible Heat Advection, Thomas W. Brakke, Shashi B. Verma, Norman J. Rosenberg
Local And Regional Components Of Sensible Heat Advection, Thomas W. Brakke, Shashi B. Verma, Norman J. Rosenberg
School of Natural Resources: Faculty Publications
Detailed knowledge of the advection of sensible heat is necessary to understand the energy balance of the evaporating surface in many parts of the world. Sensible hear advection can result from regional and/or local sources. The local and regional components of sensible heat advection (Aloc and Areg, respectively) are identified and their magnitudes in a semi-arid to sub-humid zone are established in the work reported here. Measurements of dry- and wet-bulb air temperature, wind speed and net radiation were made above an irrigated alfalfa field with relatively dry surrounding upwind at Mead, NE. A modified Bowen ratio-energy balance method which …
Shelter Effects On Growth And Yield Of Corn - Nebraska, U.S.A., James R. Brandle
Shelter Effects On Growth And Yield Of Corn - Nebraska, U.S.A., James R. Brandle
School of Natural Resources: Faculty Publications
No abstract provided.
Turbulent Exchange Coefficients For Sensible Heat And Water Vapor Under Advective Conditions, Shashi Verma, Norman J. Rosenberg, Blaine L. Blad
Turbulent Exchange Coefficients For Sensible Heat And Water Vapor Under Advective Conditions, Shashi Verma, Norman J. Rosenberg, Blaine L. Blad
School of Natural Resources: Faculty Publications
Results are presented of micrometeorological measurements made over alfalfa and soybeans under conditions of sensible heat advection at Mead, Neb. The sensible heat advection phenomenon reported here is of a regional rather than a local nature. The exchange coefficient for sensible heat (Kh) is found to be generally greater than the exchange coefficient for water vapor (Kw). This result contradicts the usaul assumption of equality of Kh and Kw under nonadvection (lapse or unstable) conditions when the net transfer of both sensible heat and water vapor are away from the earth's surface. Under advective conditions, however, heat and water vapor …
Extreme Evapotranspiration By Irrigated Alfalfa: A Consequence Of The 1976 Midwestern Drought, Norman J. Rosenberg, Shashi Verma
Extreme Evapotranspiration By Irrigated Alfalfa: A Consequence Of The 1976 Midwestern Drought, Norman J. Rosenberg, Shashi Verma
School of Natural Resources: Faculty Publications
The rate of evapotranspiration by irrigated alfalfa at Mead, NE (41°09'N; 96°30'W, elevation 354 m) reached record levels in 1976. Evapotranspiration was measured with precision weighing lysimeters in a field 1.9 ha in size. Evapotranspiration ranged during the growing season from 4.75 to 14.22 mm day–1 and exceeded 10 mm day–1 on one-third of the days studied. On each day of study the ratio of latent heat flux density (LE) to the sum of the net radiation and soil heat flux densities (Rn+S) was such that LE/ (Rn+S) > 1, indicating the occurrence of significant sensible heat advection. On …
Daily Maximum And Minimum Temperature Forecasts And The Influence Of Snow Cover, Kenneth F. Dewey
Daily Maximum And Minimum Temperature Forecasts And The Influence Of Snow Cover, Kenneth F. Dewey
School of Natural Resources: Faculty Publications
Research into the relationship between snow cover and observed maximum and minimum temperatures is reviewed. An example of the importance of snow cover and forecasting max/min temperatures is presented for this past winter (1976-77). It is shown that there was a warm bias in the MOS temperature forecasts for the northern Great Plains following the receipt of a fresh cover of snowfall. it is proposed that snow cover be incorporated as a conditional predictor to be used only during specific synoptic conditions.
Reflectant Induced Modification Of Soybean Canopy Radiation Balance. V Longwave Radiation Balance, M. W. Baradas, B. L. Blad, N. J. Rosenberg
Reflectant Induced Modification Of Soybean Canopy Radiation Balance. V Longwave Radiation Balance, M. W. Baradas, B. L. Blad, N. J. Rosenberg
School of Natural Resources: Faculty Publications
No abstract provided.
Reflectant Induced Modification Of Soybean Canopy Radiation Balance. Iv. Leaf And Canopy Temperature, M. W. Baradas, B. L. Blad, N. J. Rosenberg
Reflectant Induced Modification Of Soybean Canopy Radiation Balance. Iv. Leaf And Canopy Temperature, M. W. Baradas, B. L. Blad, N. J. Rosenberg
School of Natural Resources: Faculty Publications
No abstract provided.
A System And Program For Monitoring Co2 Concentration Gradient, And Flux In An Agricultural Region, N. J. Rosenberg, S. B. Verma
A System And Program For Monitoring Co2 Concentration Gradient, And Flux In An Agricultural Region, N. J. Rosenberg, S. B. Verma
School of Natural Resources: Faculty Publications
No abstract provided.
Carbon Dioxide Concentration And Flux In A Large Agricultural Region Of The Great Plains Of North America, S. B. Verma
Carbon Dioxide Concentration And Flux In A Large Agricultural Region Of The Great Plains Of North America, S. B. Verma
School of Natural Resources: Faculty Publications
No abstract provided.
Resistance-Energy Balance Method For Predicting Evapotranspiration: Determination Of Boundary Layer Resistance And Evaluation Of Error Effects, S. B. Verma, N. J. Rosenberg, B. L. Blad
Resistance-Energy Balance Method For Predicting Evapotranspiration: Determination Of Boundary Layer Resistance And Evaluation Of Error Effects, S. B. Verma, N. J. Rosenberg, B. L. Blad
School of Natural Resources: Faculty Publications
No abstract provided.
Vertical Profiles Of Carbon Dioxide Concentration In Stable Stratification, S. B. Verma
Vertical Profiles Of Carbon Dioxide Concentration In Stable Stratification, S. B. Verma
School of Natural Resources: Faculty Publications
No abstract provided.
The Prediction Of Lake Huron Lake-Effect Snowfall Systems, Kenneth F. Dewey
The Prediction Of Lake Huron Lake-Effect Snowfall Systems, Kenneth F. Dewey
School of Natural Resources: Faculty Publications
Data was collected during the 1971-72 snowfall season for the Lake Huron basin. The bulk aerodynamic approach, as formulated by Priestly, was utilized to estimate the daily average flux of heat and moisture over the lake. It was hypothesized that discriminant analysis could be employed to determine the threshold value (discriminant index) of the energy flux which is necessary for the occurrence of the lake-effect snowfall system. To determine the validity of this threshold value, the discriminant index was applied to a series of historical data. The results of this analysis indicated that the discriminant index could be utilized to …
Accuracy Of Lysimetric, Energy Balance, And Stability-Corrected Aerodynamic Methods Of Estimating Above-Canopy Flux Of Co2, S. B. Verma, N. J. Rosenberg
Accuracy Of Lysimetric, Energy Balance, And Stability-Corrected Aerodynamic Methods Of Estimating Above-Canopy Flux Of Co2, S. B. Verma, N. J. Rosenberg
School of Natural Resources: Faculty Publications
No abstract provided.
Changes In Polysomes Of Black Locust Seedlings During Dehydration-Rehydration Cycles, James R. Brandle, P.D. Schnare, T.M. Hinckley, G.N. Brown
Changes In Polysomes Of Black Locust Seedlings During Dehydration-Rehydration Cycles, James R. Brandle, P.D. Schnare, T.M. Hinckley, G.N. Brown
School of Natural Resources: Faculty Publications
No abstract provided.